Overview
The ADP7104ARDZ-3.3-R7 is a CMOS, low dropout linear regulator (LDO) manufactured by Analog Devices Inc. This high input voltage LDO operates from 3.3V to 20V and provides up to 500mA of output current, making it ideal for regulating high performance analog and mixed-signal circuits. It features an advanced proprietary architecture that ensures high power supply rejection, low noise, and excellent line and load transient response with a small 1µF ceramic output capacitor. The device is particularly suited for noise-sensitive applications and includes a digital power-good output and a user-programmable precision under-voltage lockout function.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.3V to 20V | V |
| Output Voltage | 3.3V | V |
| Maximum Output Current | 500mA | mA |
| Low Dropout Voltage | 350mV (typ at 500mA) | mV |
| Output Noise | 15µV rms (10Hz to 100kHz, VIN = 6.3V, VOUT = 3.3V) | µV |
| PSRR Performance | 60dB (at 10kHz, VIN = 4.3V, VOUT = 3.3V) | dB |
| Quiescent Current | 900µA max (at IOUT = 100µA, VIN = 10V, TJ = −40°C to +125°C) | µA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-lead SOIC w/ EP |
Key Features
- High power supply rejection ratio (PSRR) of 60dB at 10kHz
- Low noise output of 15µV rms
- Low dropout voltage of 350mV at 500mA
- Maximum output current of 500mA
- User-programmable precision under-voltage lockout (UVLO) function
- Digital power-good output for monitoring the health of the output voltage
- Reverse current protection, foldback current limit, and thermal overload protection
- Low quiescent current of 900µA max
- Compact 8-lead SOIC w/ EP package
Applications
- Regulation of noise-sensitive applications: ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and PLLs
- Communications and infrastructure
- Medical and healthcare
- Industrial and instrumentation
Q & A
- What is the input voltage range of the ADP7104ARDZ-3.3-R7? The input voltage range is from 3.3V to 20V.
- What is the maximum output current of the ADP7104ARDZ-3.3-R7? The maximum output current is 500mA.
- What is the typical dropout voltage of the ADP7104ARDZ-3.3-R7? The typical dropout voltage is 350mV at 500mA.
- What is the PSRR performance of the ADP7104ARDZ-3.3-R7? The PSRR performance is 60dB at 10kHz.
- What is the output noise of the ADP7104ARDZ-3.3-R7? The output noise is 15µV rms from 10Hz to 100kHz.
- Does the ADP7104ARDZ-3.3-R7 have a power-good indicator? Yes, it includes a digital power-good output.
- What protection features does the ADP7104ARDZ-3.3-R7 have? It includes reverse current protection, foldback current limit, and thermal overload protection.
- What is the operating temperature range of the ADP7104ARDZ-3.3-R7? The operating temperature range is from −40°C to +125°C.
- In what package types is the ADP7104ARDZ-3.3-R7 available? It is available in 8-lead SOIC w/ EP and 8-lead LFCSP packages.
- What are some typical applications of the ADP7104ARDZ-3.3-R7? Typical applications include regulation of noise-sensitive circuits, communications, medical and healthcare, and industrial instrumentation.
